Back pain in psoriatic arthritis: defining prevalence, characteristics and performance of inflammatory back pain criteria in psoriatic arthritis
Kristy S Yap, Justine Y Ye, Suzanne Li, Dafna D Gladman, Vinod Chandran
Annals of the Rheumatic Diseases Nov 2018, 77 (11) 1573-1577; DOI: 10.1136/annrheumdis-2018-213334
